About Dennis O'Neill
Lived 1866 – 1912 (aged 45). Dennis O'Neill was an American baseball player.
Dennis O'Neill (November 22, 1866 – November 15, 1912) was an American Major League Baseball player. He played for the St. Louis Browns in June, 1893.
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Important facts
Related people
Same field, nearest in time
Contemporaries
People whose lives overlapped Dennis O'Neill's
Frequently asked questions
Who was Dennis O'Neill?
American baseball player
When was Dennis O'Neill born?
Dennis O'Neill was born on 22 November 1866 in Holyoke.
When did Dennis O'Neill die?
Dennis O'Neill died on 15 November 1912 in Rushville.
What was Dennis O'Neill's occupation?
Dennis O'Neill was a baseball player.
What nationality was Dennis O'Neill?
Dennis O'Neill was American.
Sources & further reading
· DBpedia: Dennis O'Neill (baseball)
Cite this page
APA: Biography.guide. (2026). Dennis O'Neill. https://biography.guide/dennis-o-neill-baseball-player/
MLA: "Dennis O'Neill." Biography.guide, https://biography.guide/dennis-o-neill-baseball-player/.
Chicago: "Dennis O'Neill." Biography.guide. https://biography.guide/dennis-o-neill-baseball-player/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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